BoatsSirius 40 DS

Sirius 40 DS

Fractional Sloop · Fin w/rudder On Partial Skeg · First built 2015

A 12.9-metre fractional sloop built since 2015, offering a deep 2.3-metre draft for performance and stability

Designed by Marc-Oliver von Ahlen & Yachtdesign v. Ahlen, built by Sirius-Werft.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin w/rudder On Partial Skeg

See her sail

The Sirius 40 DS, on the water

The fleet's own footage — the truest look at how she really moves.

Footage from Sailing Northern Brees

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

LivelyComfort 33Sea-kindly
CoastalCapsize 1.82Bluewater
LightD/L 232Heavy
EasygoingSA/D 16.2Powered-up
TenderBallast 30%Stiff

A capable cruiser that sits just inside the offshore line — coastal work with real passages in her.

  • Heavier than ~83% of boats her size on file
  • Draws more than ~90% of boats her size on file
  • Beamier than ~78% of boats her size on file

Compared with 2628 boats of the same type within a quarter of her length.

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

Seen once across one channel of the fleet.

Basemap © Wikimedia Commons · CC BY-SA 4.0

Who's been looking

Market signal

Crews the fleet has filmed weighing this model up — no sale seen, and no asking price.

1channel looked into buying

From the fleet's own footage — our observed signal, not broker listings.

The record

Full specifications

The complete reference set — tap any figure to switch between metric and imperial.

Dimensions
Weights
Ballast / displacement
29.7%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
16.2
Displacement / length
231.9
Comfort ratio
32.5
Capsize screening
1.82
Hull speed
8.1 kn
Pounds / inch immersion
1753
Hull
Hull type
Fin w/rudder on partial skeg
Construction
Fiberglass
Ballast type
Cast iron and/or lead
Production
Years built
First built 2015
Designer
Marc-Oliver von Ahlen, Yachtdesign v. Ahlen
Builder
Sirius-Werft, Sirius -Werft GmbH

Boats like this, on the water

More boats like her, on the water

Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.

Moody 4212.74 mSame hull family0.2 m shorterA masthead ketch offered with a center cockpit and an optional inside steering station for all-weather cruising
The refit continues [Ep. 136]0:36from Sailing Supernova
Valiant Yachts 4212.80 mSame hull familyNear-identical lengthA Robert Perry-designed offshore cutter featuring a skeg-hung rudder and a heavy displacement hull for blue-water stability
Matt Rutherford // Around the Arctic (in a Valiant This Time!)6:36from 59° North Sailing
Pearson Yachts 41912.73 mSame hull family0.2 m shorterA short-lived 1970s production run designed for the charter trade, featuring a skeg-mounted rudder and shoal draft
We're Cutting Off our Keel (Part 2 of 4) | Step 4492:26from Sailing Uma
Pearson Yachts 424 Ketch12.90 mSame hull familyNear-identical lengthA masthead ketch featuring an aft cockpit layout and a 1.6-metre draft for versatile coastal and offshore cruising
The MIGHTY But CHEAP Pearson 424from Practical Sailor
Rustler Yachts 4212.80 mSame hull familyNear-identical lengthA 12.8-metre cutter with a 40% ballast ratio, engineered for heavy-weather stability and long-range blue water autonomy
Rustler 42 - A Yacht Delivery from St Lucia to Antigua0:28from Halcyon Yachts - International Yacht Delivery
Catalina Yachts 4212.76 mSame hull familyNear-identical lengthA high-volume cruiser built on a Nelson/Marek racing hull, featuring a masthead rig and a 1.83-metre fin keel
Why the Catalina 42 Took Over the Caribbeanfrom Practical Sailor

The family

Related models

The designs closest to hers — usually the rest of the builder's range, sometimes the same hull sold under another name.

Sirius 35 DSA 35-foot fractional sloop featuring a deep 1.98-metre draft and a balanced displacement-to-ballast ratio for offshore stabilitySirius 32 DSA deck saloon masthead sloop with a shoal-draft fin keel, designed for comfortable cruising in a compact 32-foot hullSirius 38DSA Georg Nissen-designed deck saloon cruiser featuring a stiff hull and a protected rudder on a partial skegSirius 31 MA Peter Schmidt-designed masthead sloop with a skeg-hung rudder, built for stable, comfortable cruising since 1988

Keep asking

The fleet has more to say

Search what's been said about the Sirius 40 DS, or ask a specific question — the answer comes back written out, with links to the moments it draws on.

Search the fleet for boats like thisAsk the fleet about the Sirius 40 DS

The newsletter

New boats, new stories, from everywhere.

One email from the fleet — boats newly added, videos newly analyzed. No noise.

Report an issue